Regge behavior saves string theory from causality violations
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Regge behavior saves string theory from causality violations. / di Vecchia, Paolo; Giuseppe, D'Appollonio; Russo, Rodolfo; Veneziano, Gabriele.
I: Journal of High Energy Physics (Online), Bind 2015, Nr. 05, 144, 27.05.2015.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Regge behavior saves string theory from causality violations
AU - di Vecchia, Paolo
AU - Giuseppe, D'Appollonio
AU - Russo, Rodolfo
AU - Veneziano, Gabriele
PY - 2015/5/27
Y1 - 2015/5/27
N2 - Higher-derivative corrections to the Einstein-Hilbert action are present in bosonic string theory leading to the potential causality violations recently pointed out by Camanho et al. [1]. We analyze in detail this question by considering high-energy string-brane collisions at impact parameters b ≤ l s (the string-length parameter) with l s ≫ R p (the characteristic scale of the Dp-brane geometry). If we keep only the contribution of the massless states causality is violated for a set of initial states whose polarization is suitably chosen with respect to the impact parameter vector. Such violations are instead neatly avoided when the full structure of string theory — and in particular its Regge behavior — is taken into account.
AB - Higher-derivative corrections to the Einstein-Hilbert action are present in bosonic string theory leading to the potential causality violations recently pointed out by Camanho et al. [1]. We analyze in detail this question by considering high-energy string-brane collisions at impact parameters b ≤ l s (the string-length parameter) with l s ≫ R p (the characteristic scale of the Dp-brane geometry). If we keep only the contribution of the massless states causality is violated for a set of initial states whose polarization is suitably chosen with respect to the impact parameter vector. Such violations are instead neatly avoided when the full structure of string theory — and in particular its Regge behavior — is taken into account.
U2 - 10.1007/JHEP05(2015)144
DO - 10.1007/JHEP05(2015)144
M3 - Journal article
VL - 2015
JO - Journal of High Energy Physics (Online)
JF - Journal of High Energy Physics (Online)
SN - 1126-6708
IS - 05
M1 - 144
ER -
ID: 146822724